Fix Linux build warnings due to redefinition of macros:

- add new header lldb-python.h to be included before other system headers
- short term fix (eventually python dependencies must be cleaned up)

Patch by Matt Kopec!

llvm-svn: 169341

lldb/source/Plugins/OperatingSystem/Python/OperatingSystemPython.cpp

@@ -6,6 +6,9 @@
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-python.h"
+
 #ifndef LLDB_DISABLE_PYTHON
 
 #include "OperatingSystemPython.h"